Geo-Joint: Freshwater Sharks

Freshwater Sharks

Sharks have fairly salty interiors so they are at home in the ocean. Even the ones that dine on small fish prefer to keep to the ocean and avoid freshwater.

Geo-Joint: The Antikythera Mechanism

Antikythera Mechanism

In 1900, sponge divers off the Greek island of Antikythera found a strange clockwork-like mechanism made of bronze in the wreck of an ancient ship.

Geo-Joint: New Year’s Day

New Year's

There are scores of different New Years observations and celebrations around the world – this is but a very short list.

Geo-Joint: The North Pole

North Pole

The North Pole may seem remote to us nowadays, but back before anyone had been there, it might as well have been on the moon.

Geo-Joint: Glacier National Park

Glacier National Park

Unlike the melting of the tundra in faraway Alaska, Glacier National Park is a highly visible and closer-to-home example that our world is changing rapidly.